2220011 has 4 divisors (see below), whose sum is σ = 2261952.
Its totient is φ = 2178072.
The previous prime is 2220007. The next prime is 2220041. The reversal of 2220011 is 1100222.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1100222 = 2 ⋅550111.
It is a cyclic number.
It is not a de Polignac number, because 2220011 - 22 = 2220007 is a prime.
It is a Duffinian number.
It is a zygodrome in base 10.
It is not an unprimeable number, because it can be changed into a prime (2220041) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20891 + ... + 20996.
It is an arithmetic number, because the mean of its divisors is an integer number (565488).
22220011 is an apocalyptic number.
2220011 is a deficient number, since it is larger than the sum of its proper divisors (41941).
2220011 is an equidigital number, since it uses as much as digits as its factorization.
2220011 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 41940.
The product of its (nonzero) digits is 8, while the sum is 8.
The square root of 2220011 is about 1489.9701339289.
The cubic root of 2220011 is about 130.4522904631.
Adding to 2220011 its reverse (1100222), we get a palindrome (3320233).
The spelling of 2220011 in words is "two million, two hundred twenty thousand, eleven".